Where are the references that Vertica is sort-of a PG fork and that Paraccel is a PG fork? Quick searches of the interweb finds claims that they are not. Not sure you need to bring doubt to the rest of the details in an excellent slide deck.
On Wed, Sep 18, 2013 at 9:14 AM, Josh Berkus <josh@agliodbs.com> wrote:
Damien,
This looks like fun!
I'm not necessarily comfortable with an unqualified link from Ingres to Postgres; can you make it a dotted line or something? The reason I say this is that Stonebraker was quite firm that there was no code re-use from Ingres to Postgres, since he was legally prevented from such copying.
Link to my presentation Elephant Roads, which goes over a bunch of the commercial forks as of 2009: